Question [Q] Recovery can't mount data for backup

Hello, I am a novice at best when it comes to this. That being said I have successfully Unlocked my boot-loader, rooted and installed roms to my phone. Recently when using TWRP 2.7 I noticed that it would not mount data when restoring my backup. I then noticed it would not mount data when creating a new backup while using TWRP 2.7. I then installed CWM latest recovery. It does the same thing. In the process I got stuck in CWM and had to AP Fastboot to stock 4.4.2. Now with CWM it will not mount data when doing a backup. I cant load a rom without having a secure backup. What can I do? Need help! Calling all devs!